Field help (CUSFLD2) 

Use this field to identify a specific work order operation field to display in Production scheduler. The field you select will be displayed for all work orders being produced at this site. Values for the assigned custom field are displayed in the Production scheduler Indicators & Details panel and the Operation ScreenTips window.

The list of fields available for selection is defined in Local menu 3503.

 Local menu 3503 - Production Scheduler operation fields: Do not amend or delete the existing values in this local menu. It is intrinsically linked to tables that provide the information for the associated field. If your organization requires additional custom fields you can add new codes and messages starting at value 8.